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<p class=MsoNormal><span style='color:#1F497D'>If you are willing to open up
SIP (5060) and UDP range (usually 16384-32768, but I’ve seen some SIPTs require
1024-65535) through the firewall, you can terminate directly to UCM 4.1 and
later (UCM 5.x and later preferred). Obviously, this is not the
recommended solution. I’d love to see Cisco add this functionality
to their ASA as kind of a SIP-proxy/edge to allow SIP trunks through to UCM
directly but still be protected. I hear that functionality is coming for
Microsoft with the next Microsoft OCS release.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'>You may require an advanced IOS
gateway with DSPs to handle DTMF conversion if the SIP provider only supports
inband dtmf.<o:p></o:p></span></p>
<p class=MsoNormal><span style='color:#1F497D'><o:p> </o:p></span></p>
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<p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span></b><span
style='font-size:10.0pt;font-family:"Tahoma","sans-serif"'>
cisco-voip-bounces@puck.nether.net [mailto:cisco-voip-bounces@puck.nether.net] <b>On
Behalf Of </b>tednugent73@gmail.com<br>
<b>Sent:</b> Friday, June 19, 2009 12:38 PM<br>
<b>To:</b> Cisco VoIPoE List<br>
<b>Subject:</b> [cisco-voip] SIP Trunk to Paetec ITSP<o:p></o:p></span></p>
</div>
<p class=MsoNormal><o:p> </o:p></p>
<p class=MsoNormal><span style='font-size:12.0pt;font-family:"Times New Roman","serif"'>Has
anyone had any experience (good bad or otherwise) with SIP Trunking to
Paetec/USLEC? I have a new client that has ordered SIP Trunks at 3 locations
through Paetec. They are looking for us to help them implement the solution in
3 weeks and I’m not seeing any CUBEs or IADs on the order and of course
Paetec has assured them that they are not required…? I’m coming
into this late as the “design” (or lack thereof) is already in
place and I’d like to know if there is anything that I should be ready
for. I don’t have a ton of experience with SIP trunks, at least not with
Paetec but I know that faxing is always an issue and you’d need CUBE at a
minimum just to get that working, anything else or any other comments on Paetec
or SIP as a whole? TIA for any insight.<o:p></o:p></span></p>
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